Railway car



July 27, 1937. T. H. scHoEPF ET A1.' 2,088,487

RAILWAY CAR Filed Feb. 15, 19:55

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4 5w 5, 6 7` i i v 4 TRANSMTTTER TRAusMmEf-a E M a; f""' o will: 2s 26 xzfg o a5 y 23 39 REcEwER l PRESSURE Tramp-1 PRESSURE 38 /4f, as

" 8 DISCHARGE W F/c. '5. H: 2 TRANSMITER.

REcEwER l n l S 2 ig, ,i g; g 2a 5,3; 2k; 5 a 5 s l M 5 3 :i S E i INVENTORS rHfaDozeE H. same-Pf',

ATTORNEYS.

Patented July 27, 1937 UNITED RAILWAY CAR corporation oi' Ohio Our invention relates to articulated cars, andin particular, to a means and method of resisting rocking movements of the cars in order to maintainthem on a substantially horizontal plane.

Due to the fact that thecars are tilted by super-elevated rails on curves` and are tilted due to compound curves, it is. necessary to provide some means of restraining the loscillations and tilting of the cars, because in articulated cars .the car bodies are -pivotally mounted on semi-circular trunnions in semi-circular center plates. l It is the object of this invention to provide a remotely-controlled hydraulic control system for resisting the movements of the car bodies by applying a resisting force to that side of the car body adjacent its side bearing which isV tending to descend.

Referring to the drawing:` Figure 1. is a diagrammatic view of the control apparatus applied to one end of an` articulated car.

Figure 2 is a section through one ofthe controned units.

vFigure 3 is a section through one of the controlling units.

We desire to employ an hydraulic control system in which the actuating mechanismis substantially a solid column of fluid ofsmall diameter. This column permits of a thrust being applied at a remote point around the corners'and .other obstructions, with the'minimum interference.

Referring tothe drawing in detail, 'I isi a car body on which is mounted an actuating pendulum pivoted at 2, having "a pendulum shaft 3' and a weight 4.. This weightA is adaptedto engage the thrust armi, which -is pivoted at I to the lever 1. The leverA I vis one @met a bellcrank pivoted at 8, and having an arm 9.

40'This arm is connectedto a piston rod operating a piston II'in a cylinder I2.

.The hydraulic uid supply from the chamber Il, exit from which is controlled by the valve I4. is thus compressedjand discharged through the pipe line i5. The valve I4 is controlled by the valve stem I6, which in turn, is actuated through the lever I1 by the arm 9. 'Ihe spring I8, operating the roller I9, which engages with the bell crank through the cam surface 2li, serves to regulate the movement of the piston II.

The result of the pressure in the line II is to actuate the piston 2| 1n the cynnder 2z or the' remotely-controlled unit 23. The piston 2l has a piston rod 24, pivoted to the bellcrank arm 2l. The bellcrank arm 25 is connected Vto the arm spring f2l.. with a .roller '29 engaging the cam 3l, regulatesthe movementoffthisarm..

The result is' hat the arm zagjmn lsfcon 42, with the result'that the plstonrod 43 engages4 the side `bearing 44, and resiststhe downward movement of Athe I. 'I'i 1e bodyl I is supported upon a trunnion 4 5 .a'nd center plate, mounted on the usual -tru'ck ybolster 4'I.'r

When the pressuris relieved `in the pressure line I5 the spring?" moves the valve'321so .that the fluid under pressure' below` the piston42A in the cylinder' 4I can `return through` the Pinelli under pressure'of the piston 42,and thencepass into the line 4I `randl into the discharge tank 46, whence it is pumped by the" pump 3 6 vintcvfthe pressure tank 33.* Thus'thepressure of thedls` charge is utilized'to maintain y th `e"p'ressure inthe pressuretank, and the pump is operatingu'pon fluid already under pressure soas to reduce' the amount of work the pump has to perform.

- We find it'deslrable to mount'the transmitter shown ln'Figure3 on the body, *where itcan be actuated bythe pendulum. vvWe further nnd `it desirable to locatel thexreceiver` and #valve mechanism on the truck closely-adjacent the side bearing. .The pump,` pressure .andgdischarge tanks are preferablymountedupon the car body, but canbe mountedupon the truck.` As the .apparatus on bot j sides is alike adescriptionof vone side is sufilcient'for bothsides. Whenthe Ycar tilts in one direction'that side will havethe pressureappliedgito r slst'thejftilting movement elsewhere. 'It will beV understoodthat prehend within our invention such modicatlons as come within the scope of the claims and the v invention.

Having thus fully described our invention. what we claim as new and desire to secure by `Letters Patent, is:

' 1.-In combination, a tiltable car body, side bearing means therefor, fluid pressure means for resisting the movement of the body when applied to the side bearing means, avalve for controlling 5 sure therein and means to actuate said valve according to the pressure created in said line; and means on the car body for actuating said pressure-controlling means.

2. In combination, a tiltable body, hydraulically-actuated side .bearing means, a pendulum on said body, an hydraulic transmission line, means actuated by said pendulum for ygenerating hydraulic pressure in an hydraulic transmission line, means connected thereto for v movement by the hydraulic pressure so transmitted, and a valve connected thereto for controlling the application of hydraulic pressure to said side bearing means.

3. In combinatioma tiltable body, hydraulically-'actuated side bearing means, a pendulum on` said body, means'actuated by said pendulum for generating hydraulic pressure in'a'n hydraulic transmission line, an hydraulic transmission line, means connected to said hydraulic transmission line for movement byr the hydraulic pressure so transmitted, a valve `connected to said hydraulic transmission line for controlling the application of hydraulic pressure to said side bearing means, and means associated with said valve for restoring it to its initial lposition, uponthe reduction of pressure within said hydraulic pressure transmission line. 1 "1; v 4. In combination, a car' body, means onV either side of the car body for' resisting the rocking movement thereof, a pendulum-operating device and an hydraulic system 'A operated thereby for resisting'the downward movement of said body, said system comprising an f'hydraulic transmitter, an hydraulic receiver, avalve actuated in one direction by said receiver, means for ,returning said valve to its initial position, a source of iiuid. pressure controlled by said' valve, and meansr to receive the fluid afterl having been applied, all as directed-by said valve.

5. In combination, a car body, .hydraulicallyactuated means `on either side' thereof for resisting the rocking of said body a pendulum, an hydraulic'transmitting mechanism comprising a transmitter, a conduit and a receiver actuated by said pendulum and associated with the respective sides of said body; .a valve actuated in one direction `by said receiver, yielding means for moving the valve in the other direction, a pump, a pressure tank connected to said valve and supplied by said pump, a discharge tank connected to said valve and connected to said pump, and means connecting said hydraulic-resisting means to said valve, whereby when the transmitter is actuated bythependulum the transmitter will actuate the receiverand the receiver will move the valve for the application of lpressure from the pump and pressure tank to the hydraulic-resisting, means and` upon the return of the receiver and transmitter to normal position by the yielding means applied to the valve, the hydraulic pressure from the pressure-resisting means will return through the valve ,to idle discharge tank.

6. In combination, a car body, hydraulicallyactuated side bearing means, means operable by the tilt of the body for selectively operating pressure-applying means on eitherside of the body for supplying pressure to the sidebearing means to resist the tilt of the body, sa'd means comprising a transmitter, a transmiss on line, a receiver and a valve actuated thereby, yielding means for moving said valve, transmitter and receiver back into the., initial position, and a system of piping interconnecting a pump,` a pressure tank, a discharge tank and said side bearing through said valve, whereby when the valve is actuated by the transmitter and receiver pressure is applied to the sidebearing means and when the.valve is actuated by the yielding means hydraulic pressure is delivered from the side bearing means to the discharge tank. f

'7; Incombination, a tiltable car body, yielding means iorresistingthe tilt thereof, a control for applying said yielding means comprising 'a pendulum, a transmitting piston operable in a transmitting cylinder operated'b'y said pendulum, an hydraulic transmission line, a receiving cylinder and vreceiving piston, and means connecting said receiving piston to a control valve for controlling the application of hydraulic pressure to resist the tilting of the car body.

8. In combination, a tiltable car body, pressure means on either side thereof for resisting the tilting of the body, l'control means for controlling the application of pressure'to the respective sides of the body, said control means comprising a pendulum, a transmitter consisting of a piston and cylinder, an hydrauliccommunication line connecting saidcylinder toa receiver cylinder, a receiver cylinder and piston, yielding means in said transmitterv and receiver for positioning said pis'- tons, means controlled by said receiver in one direction for yapplying pressure. and yielding means for lreturning said last-named means to its initial position. I I A.

9.*In combination.` a; tiltable vcar body, pressure means on either side thereof for resisting the tilting of the bodyA control means for controlling the application of pressure to the respective sides of the body, said'k control means comprising a pendulum,r a transmitter yconsisting of a piston and cylinder, an hydraulic communication line connectingsaid cylinder to a receiver cylinder, a'receiver cylinder and piston, yielding v4means in said transmitter and receiver for positioning said. pistons, means controlled by `said receiver in one direction for applying pressure, yieldingmeans for returning said means to its initial position, and means yassociated with said transmitter for regulating thev admission of' 

